Method for forming tall tapered containers

Details Method for forming tall tapered containers Method for forming tall tapered containers

1988-06-15

1990-04-10

Combs, E. Michael

Metal deforming

By use of closed-die and coacting work-forcer

Cup or shell drawing

B21D 2220

Patent

active

049149377

ABSTRACT:
A method of forming a tapered container in which the container is first redrawn to a partial length having first and second straight sidewall portions interconnected by a transition portion and then redrawn to substantially its final length and tapered condition by drawing material from the transition portion. The method also optionally includes an overlength second redraw and a bottom profiling step utilizing the overdrawn portion to form the profile.

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patent: 4386514 (1983-06-01), Herten
patent: 4503702 (1985-03-01), Bulso, Jr. et al.

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